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Author Topic: PCB's with Mach  (Read 16607 times)

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Offline Jeff_Birt

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PCB's with Mach
« on: January 29, 2008, 05:24:18 PM »
I've made small circuit board on my Dyna 2400 before converting it to Mach3 control but this is the first after the conversion. The board was designed in Eagle (http://www.cadsoftusa.com/) which is a very nice program with a free limited version. The G-Code was generated with http://groups.yahoo.com/group/pcb-gcode/, which works great and has a Mach3 profile. It took a few tries cutting wax to get the settings down but it turned out pretty good. BTW, I ordered the routing and drill bits from http://precisebits.com/ who seem to be really nice folks. Now I just need to fix up my layout some.

The board is 2.8" x 2.5" and the traces are quite large at 0.016". It's an adapter board for another Mach conversion :)

Jeff
« Last Edit: February 01, 2008, 01:11:52 PM by Jeff_Birt »
Happy machining , Jeff Birt
 

Offline zarzul

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Re: PCB's with Mach
« Reply #1 on: January 29, 2008, 06:58:11 PM »
Very impressive!!!  How big were your bits?

ynneb

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Re: PCB's with Mach
« Reply #3 on: January 30, 2008, 12:07:54 AM »
Amazingly clean.
Excellent post.

Offline Chaoticone

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Re: PCB's with Mach
« Reply #4 on: January 30, 2008, 08:09:25 AM »
Good job Jeff, way to go. What is the other retrofit your working on?

Brett
;D If you could see the things I have in my head, you would be laughing too. ;D

My guard dog is not what you need to worry about!

Offline Jeff_Birt

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Re: PCB's with Mach
« Reply #5 on: January 30, 2008, 09:40:27 AM »
It's a Bridgeport Discovery 308 VMC. I've been working on it in my spare time for another department here on campus. This board is an interface to split the two stock limit/home switches into three separate signals. One switch by itself is -Lim, the other by itself is Home, both together is +Lim. 

http://www.machsupport.com/forum/index.php/topic,3328.0.html

Happy machining , Jeff Birt
 

Offline Keith

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Re: PCB's with Mach
« Reply #6 on: January 30, 2008, 04:57:38 PM »
How small can it go!!! Yup,that's a dime in the photo.I used a Sherline and pcb-gcode and Mach3 and built this tiny bluetooth type transmitter/receiver pair. Cutter was 45 degree,conical. Some of that soldering was hairy. Just showing that we can make anything and encouraging pcb'ers to go crazy! Check out the surface mount antenna.

Offline Jeff_Birt

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Re: PCB's with Mach
« Reply #7 on: January 30, 2008, 05:00:50 PM »
Very cool. Can you give us an idea on trace width? Also, how are you handling regesteringn the baord when doing two sided PCBs?
Happy machining , Jeff Birt
 

Offline Keith

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Re: PCB's with Mach
« Reply #8 on: January 30, 2008, 06:44:53 PM »
The line width is on the order of .01(which is around the size of the reciever and tssop micro's leads) since I can't exactly control the results given a little slop in my Z.
I make a pocket in some expanded PVC to the exact dimensions of the board and then flip. I usually do my drilling on the first side and it lines up pretty darn close to where it's suppose to be on the other side
Re: PCB's with Mach
« Reply #9 on: January 30, 2008, 09:38:14 PM »
Dear All,

I recently also made my pcb with Mach, this is my board, please visit my blog,

http://tw.myblog.yahoo.com/jjyeh-1976/article?mid=220&prev=-1&next=149

this blog is written in traditional Chinese, but you can see the image of the board.

I mill double side pcb, the size is about 50mm x 30mm, the package of the lower right
corner is the LGA-14.